lua.h - external/github.com/lua/lua - Git at Google

 /*
 ** $Id: lua.h $
 ** Lua - A Scripting Language
 ** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
 ** See Copyright Notice at the end of this file
 */


 #ifndef lua_h
 #define lua_h

 #include <stdarg.h>
 #include <stddef.h>


 #include "luaconf.h"


 #define LUA_VERSION_MAJOR	"5"
 #define LUA_VERSION_MINOR	"4"
 #define LUA_VERSION_RELEASE	"5"

 #define LUA_VERSION_NUM			504
 #define LUA_VERSION_RELEASE_NUM		(LUA_VERSION_NUM * 100 + 5)

 #define LUA_VERSION	"Lua " LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
 #define LUA_RELEASE	LUA_VERSION "." LUA_VERSION_RELEASE
 #define LUA_COPYRIGHT	LUA_RELEASE "  Copyright (C) 1994-2022 Lua.org, PUC-Rio"
 #define LUA_AUTHORS	"R. Ierusalimschy, L. H. de Figueiredo, W. Celes"


 /* mark for precompiled code ('<esc>Lua') */
 #define LUA_SIGNATURE	"\x1bLua"

 /* option for multiple returns in 'lua_pcall' and 'lua_call' */
 #define LUA_MULTRET	(-1)


 /*
 ** Pseudo-indices
 ** (-LUAI_MAXSTACK is the minimum valid index; we keep some free empty
 ** space after that to help overflow detection)
 */
 #define LUA_REGISTRYINDEX	(-LUAI_MAXSTACK - 1000)
 #define lua_upvalueindex(i)	(LUA_REGISTRYINDEX - (i))


 /* thread status */
 #define LUA_OK		0
 #define LUA_YIELD	1
 #define LUA_ERRRUN	2
 #define LUA_ERRSYNTAX	3
 #define LUA_ERRMEM	4
 #define LUA_ERRERR	5


 typedef struct lua_State lua_State;


 /*
 ** basic types
 */
 #define LUA_TNONE		(-1)

 #define LUA_TNIL		0
 #define LUA_TBOOLEAN		1
 #define LUA_TLIGHTUSERDATA	2
 #define LUA_TNUMBER		3
 #define LUA_TSTRING		4
 #define LUA_TTABLE		5
 #define LUA_TFUNCTION		6
 #define LUA_TUSERDATA		7
 #define LUA_TTHREAD		8

 #define LUA_NUMTYPES		9


 /* minimum Lua stack available to a C function */
 #define LUA_MINSTACK	20


 /* predefined values in the registry */
 #define LUA_RIDX_MAINTHREAD	1
 #define LUA_RIDX_GLOBALS	2
 #define LUA_RIDX_LAST		LUA_RIDX_GLOBALS


 /* type of numbers in Lua */
 typedef LUA_NUMBER lua_Number;


 /* type for integer functions */
 typedef LUA_INTEGER lua_Integer;

 /* unsigned integer type */
 typedef LUA_UNSIGNED lua_Unsigned;

 /* type for continuation-function contexts */
 typedef LUA_KCONTEXT lua_KContext;


 /*
 ** Type for C functions registered with Lua
 */
 typedef int (*lua_CFunction) (lua_State *L);

 /*
 ** Type for continuation functions
 */
 typedef int (*lua_KFunction) (lua_State *L, int status, lua_KContext ctx);


 /*
 ** Type for functions that read/write blocks when loading/dumping Lua chunks
 */
 typedef const char * (*lua_Reader) (lua_State *L, void *ud, size_t *sz);

 typedef int (*lua_Writer) (lua_State *L, const void *p, size_t sz, void *ud);


 /*
 ** Type for memory-allocation functions
 */
 typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize);


 /*
 ** Type for warning functions
 */
 typedef void (*lua_WarnFunction) (void *ud, const char *msg, int tocont);


 /*
 ** generic extra include file
 */
 #if defined(LUA_USER_H)
 #include LUA_USER_H
 #endif


 /*
 ** RCS ident string
 */
 extern const char lua_ident[];


 /*
 ** state manipulation
 */
 LUA_API lua_State *(lua_newstate) (lua_Alloc f, void *ud);
 LUA_API void       (lua_close) (lua_State *L);
 LUA_API lua_State *(lua_newthread) (lua_State *L);
 LUA_API int        (lua_resetthread) (lua_State *L);

 LUA_API lua_CFunction (lua_atpanic) (lua_State *L, lua_CFunction panicf);


 LUA_API lua_Number (lua_version) (lua_State *L);


 /*
 ** basic stack manipulation
 */
 LUA_API int   (lua_absindex) (lua_State *L, int idx);
 LUA_API int   (lua_gettop) (lua_State *L);
 LUA_API void  (lua_settop) (lua_State *L, int idx);
 LUA_API void  (lua_pushvalue) (lua_State *L, int idx);
 LUA_API void  (lua_rotate) (lua_State *L, int idx, int n);
 LUA_API void  (lua_copy) (lua_State *L, int fromidx, int toidx);
 LUA_API int   (lua_checkstack) (lua_State *L, int n);

 LUA_API void  (lua_xmove) (lua_State *from, lua_State *to, int n);


 /*
 ** access functions (stack -> C)
 */

 LUA_API int             (lua_isnumber) (lua_State *L, int idx);
 LUA_API int             (lua_isstring) (lua_State *L, int idx);
 LUA_API int             (lua_iscfunction) (lua_State *L, int idx);
 LUA_API int             (lua_isinteger) (lua_State *L, int idx);
 LUA_API int             (lua_isuserdata) (lua_State *L, int idx);
 LUA_API int             (lua_type) (lua_State *L, int idx);
 LUA_API const char     *(lua_typename) (lua_State *L, int tp);

 LUA_API lua_Number      (lua_tonumberx) (lua_State *L, int idx, int *isnum);
 LUA_API lua_Integer     (lua_tointegerx) (lua_State *L, int idx, int *isnum);
 LUA_API int             (lua_toboolean) (lua_State *L, int idx);
 LUA_API const char     *(lua_tolstring) (lua_State *L, int idx, size_t *len);
 LUA_API lua_Unsigned    (lua_rawlen) (lua_State *L, int idx);
 LUA_API lua_CFunction   (lua_tocfunction) (lua_State *L, int idx);
 LUA_API void	       *(lua_touserdata) (lua_State *L, int idx);
 LUA_API lua_State      *(lua_tothread) (lua_State *L, int idx);
 LUA_API const void     *(lua_topointer) (lua_State *L, int idx);


 /*
 ** Comparison and arithmetic functions
 */

 #define LUA_OPADD	0	/* ORDER TM, ORDER OP */
 #define LUA_OPSUB	1
 #define LUA_OPMUL	2
 #define LUA_OPMOD	3
 #define LUA_OPPOW	4
 #define LUA_OPDIV	5
 #define LUA_OPIDIV	6
 #define LUA_OPBAND	7
 #define LUA_OPBOR	8
 #define LUA_OPBXOR	9
 #define LUA_OPSHL	10
 #define LUA_OPSHR	11
 #define LUA_OPUNM	12
 #define LUA_OPBNOT	13

 LUA_API void  (lua_arith) (lua_State *L, int op);

 #define LUA_OPEQ	0
 #define LUA_OPLT	1
 #define LUA_OPLE	2

 LUA_API int   (lua_rawequal) (lua_State *L, int idx1, int idx2);
 LUA_API int   (lua_compare) (lua_State *L, int idx1, int idx2, int op);


 /*
 ** push functions (C -> stack)
 */
 LUA_API void        (lua_pushnil) (lua_State *L);
 LUA_API void        (lua_pushnumber) (lua_State *L, lua_Number n);
 LUA_API void        (lua_pushinteger) (lua_State *L, lua_Integer n);
 LUA_API const char *(lua_pushlstring) (lua_State *L, const char *s, size_t len);
 LUA_API const char *(lua_pushstring) (lua_State *L, const char *s);
 LUA_API const char *(lua_pushvfstring) (lua_State *L, const char *fmt,
                                                       va_list argp);
 LUA_API const char *(lua_pushfstring) (lua_State *L, const char *fmt, ...);
 LUA_API void  (lua_pushcclosure) (lua_State *L, lua_CFunction fn, int n);
 LUA_API void  (lua_pushboolean) (lua_State *L, int b);
 LUA_API void  (lua_pushlightuserdata) (lua_State *L, void *p);
 LUA_API int   (lua_pushthread) (lua_State *L);


 /*
 ** get functions (Lua -> stack)
 */
 LUA_API int (lua_getglobal) (lua_State *L, const char *name);
 LUA_API int (lua_gettable) (lua_State *L, int idx);
 LUA_API int (lua_getfield) (lua_State *L, int idx, const char *k);
 LUA_API int (lua_geti) (lua_State *L, int idx, lua_Integer n);
 LUA_API int (lua_rawget) (lua_State *L, int idx);
 LUA_API int (lua_rawgeti) (lua_State *L, int idx, lua_Integer n);
 LUA_API int (lua_rawgetp) (lua_State *L, int idx, const void *p);

 LUA_API void  (lua_createtable) (lua_State *L, int narr, int nrec);
 LUA_API void *(lua_newuserdatauv) (lua_State *L, size_t sz, int nuvalue);
 LUA_API int   (lua_getmetatable) (lua_State *L, int objindex);
 LUA_API int  (lua_getiuservalue) (lua_State *L, int idx, int n);


 /*
 ** set functions (stack -> Lua)
 */
 LUA_API void  (lua_setglobal) (lua_State *L, const char *name);
 LUA_API void  (lua_settable) (lua_State *L, int idx);
 LUA_API void  (lua_setfield) (lua_State *L, int idx, const char *k);
 LUA_API void  (lua_seti) (lua_State *L, int idx, lua_Integer n);
 LUA_API void  (lua_rawset) (lua_State *L, int idx);
 LUA_API void  (lua_rawseti) (lua_State *L, int idx, lua_Integer n);
 LUA_API void  (lua_rawsetp) (lua_State *L, int idx, const void *p);
 LUA_API int   (lua_setmetatable) (lua_State *L, int objindex);
 LUA_API int   (lua_setiuservalue) (lua_State *L, int idx, int n);


 /*
 ** 'load' and 'call' functions (load and run Lua code)
 */
 LUA_API void  (lua_callk) (lua_State *L, int nargs, int nresults,
                            lua_KContext ctx, lua_KFunction k);
 #define lua_call(L,n,r)		lua_callk(L, (n), (r), 0, NULL)

 LUA_API int   (lua_pcallk) (lua_State *L, int nargs, int nresults, int errfunc,
                             lua_KContext ctx, lua_KFunction k);
 #define lua_pcall(L,n,r,f)	lua_pcallk(L, (n), (r), (f), 0, NULL)

 LUA_API int   (lua_load) (lua_State *L, lua_Reader reader, void *dt,
                           const char *chunkname, const char *mode);

 LUA_API int (lua_dump) (lua_State *L, lua_Writer writer, void *data, int strip);


 /*
 ** coroutine functions
 */
 LUA_API int  (lua_yieldk)     (lua_State *L, int nresults, lua_KContext ctx,
                                lua_KFunction k);
 LUA_API int  (lua_resume)     (lua_State *L, lua_State *from, int narg,
                                int *nres);
 LUA_API int  (lua_status)     (lua_State *L);
 LUA_API int (lua_isyieldable) (lua_State *L);

 #define lua_yield(L,n)		lua_yieldk(L, (n), 0, NULL)


 /*
 ** Warning-related functions
 */
 LUA_API void (lua_setwarnf) (lua_State *L, lua_WarnFunction f, void *ud);
 LUA_API void (lua_warning)  (lua_State *L, const char *msg, int tocont);


 /*
 ** garbage-collection function and options
 */

 #define LUA_GCSTOP		0
 #define LUA_GCRESTART		1
 #define LUA_GCCOLLECT		2
 #define LUA_GCCOUNT		3
 #define LUA_GCCOUNTB		4
 #define LUA_GCSTEP		5
 #define LUA_GCSETPAUSE		6
 #define LUA_GCSETSTEPMUL	7
 #define LUA_GCISRUNNING		9
 #define LUA_GCGEN		10
 #define LUA_GCINC		11

 LUA_API int (lua_gc) (lua_State *L, int what, ...);


 /*
 ** miscellaneous functions
 */

 LUA_API int   (lua_error) (lua_State *L);

 LUA_API int   (lua_next) (lua_State *L, int idx);

 LUA_API void  (lua_concat) (lua_State *L, int n);
 LUA_API void  (lua_len)    (lua_State *L, int idx);

 LUA_API size_t   (lua_stringtonumber) (lua_State *L, const char *s);

 LUA_API lua_Alloc (lua_getallocf) (lua_State *L, void **ud);
 LUA_API void      (lua_setallocf) (lua_State *L, lua_Alloc f, void *ud);

 LUA_API void (lua_toclose) (lua_State *L, int idx);
 LUA_API void (lua_closeslot) (lua_State *L, int idx);


 /*
 ** {==============================================================
 ** some useful macros
 ** ===============================================================
 */

 #define lua_getextraspace(L)	((void *)((char *)(L) - LUA_EXTRASPACE))

 #define lua_tonumber(L,i)	lua_tonumberx(L,(i),NULL)
 #define lua_tointeger(L,i)	lua_tointegerx(L,(i),NULL)

 #define lua_pop(L,n)		lua_settop(L, -(n)-1)

 #define lua_newtable(L)		lua_createtable(L, 0, 0)

 #define lua_register(L,n,f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n)))

 #define lua_pushcfunction(L,f)	lua_pushcclosure(L, (f), 0)

 #define lua_isfunction(L,n)	(lua_type(L, (n)) == LUA_TFUNCTION)
 #define lua_istable(L,n)	(lua_type(L, (n)) == LUA_TTABLE)
 #define lua_islightuserdata(L,n)	(lua_type(L, (n)) == LUA_TLIGHTUSERDATA)
 #define lua_isnil(L,n)		(lua_type(L, (n)) == LUA_TNIL)
 #define lua_isboolean(L,n)	(lua_type(L, (n)) == LUA_TBOOLEAN)
 #define lua_isthread(L,n)	(lua_type(L, (n)) == LUA_TTHREAD)
 #define lua_isnone(L,n)		(lua_type(L, (n)) == LUA_TNONE)
 #define lua_isnoneornil(L, n)	(lua_type(L, (n)) <= 0)

 #define lua_pushliteral(L, s)	lua_pushstring(L, "" s)

 #define lua_pushglobaltable(L)  \
 	((void)lua_rawgeti(L, LUA_REGISTRYINDEX, LUA_RIDX_GLOBALS))

 #define lua_tostring(L,i)	lua_tolstring(L, (i), NULL)


 #define lua_insert(L,idx)	lua_rotate(L, (idx), 1)

 #define lua_remove(L,idx)	(lua_rotate(L, (idx), -1), lua_pop(L, 1))

 #define lua_replace(L,idx)	(lua_copy(L, -1, (idx)), lua_pop(L, 1))

 /* }============================================================== */


 /*
 ** {==============================================================
 ** compatibility macros
 ** ===============================================================
 */
 #if defined(LUA_COMPAT_APIINTCASTS)

 #define lua_pushunsigned(L,n)	lua_pushinteger(L, (lua_Integer)(n))
 #define lua_tounsignedx(L,i,is)	((lua_Unsigned)lua_tointegerx(L,i,is))
 #define lua_tounsigned(L,i)	lua_tounsignedx(L,(i),NULL)

 #endif

 #define lua_newuserdata(L,s)	lua_newuserdatauv(L,s,1)
 #define lua_getuservalue(L,idx)	lua_getiuservalue(L,idx,1)
 #define lua_setuservalue(L,idx)	lua_setiuservalue(L,idx,1)

 #define LUA_NUMTAGS		LUA_NUMTYPES

 /* }============================================================== */

 /*
 ** {======================================================================
 ** Debug API
 ** =======================================================================
 */


 /*
 ** Event codes
 */
 #define LUA_HOOKCALL	0
 #define LUA_HOOKRET	1
 #define LUA_HOOKLINE	2
 #define LUA_HOOKCOUNT	3
 #define LUA_HOOKTAILCALL 4


 /*
 ** Event masks
 */
 #define LUA_MASKCALL	(1 << LUA_HOOKCALL)
 #define LUA_MASKRET	(1 << LUA_HOOKRET)
 #define LUA_MASKLINE	(1 << LUA_HOOKLINE)
 #define LUA_MASKCOUNT	(1 << LUA_HOOKCOUNT)

 typedef struct lua_Debug lua_Debug;  /* activation record */


 /* Functions to be called by the debugger in specific events */
 typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);


 LUA_API int (lua_getstack) (lua_State *L, int level, lua_Debug *ar);
 LUA_API int (lua_getinfo) (lua_State *L, const char *what, lua_Debug *ar);
 LUA_API const char *(lua_getlocal) (lua_State *L, const lua_Debug *ar, int n);
 LUA_API const char *(lua_setlocal) (lua_State *L, const lua_Debug *ar, int n);
 LUA_API const char *(lua_getupvalue) (lua_State *L, int funcindex, int n);
 LUA_API const char *(lua_setupvalue) (lua_State *L, int funcindex, int n);

 LUA_API void *(lua_upvalueid) (lua_State *L, int fidx, int n);
 LUA_API void  (lua_upvaluejoin) (lua_State *L, int fidx1, int n1,
                                                int fidx2, int n2);

 LUA_API void (lua_sethook) (lua_State *L, lua_Hook func, int mask, int count);
 LUA_API lua_Hook (lua_gethook) (lua_State *L);
 LUA_API int (lua_gethookmask) (lua_State *L);
 LUA_API int (lua_gethookcount) (lua_State *L);

 LUA_API int (lua_setcstacklimit) (lua_State *L, unsigned int limit);

 struct lua_Debug {
   int event;
   const char *name;	/* (n) */
   const char *namewhat;	/* (n) 'global', 'local', 'field', 'method' */
   const char *what;	/* (S) 'Lua', 'C', 'main', 'tail' */
   const char *source;	/* (S) */
   size_t srclen;	/* (S) */
   int currentline;	/* (l) */
   int linedefined;	/* (S) */
   int lastlinedefined;	/* (S) */
   unsigned char nups;	/* (u) number of upvalues */
   unsigned char nparams;/* (u) number of parameters */
   char isvararg;        /* (u) */
   char istailcall;	/* (t) */
   unsigned short ftransfer;   /* (r) index of first value transferred */
   unsigned short ntransfer;   /* (r) number of transferred values */
   char short_src[LUA_IDSIZE]; /* (S) */
   /* private part */
   struct CallInfo *i_ci;  /* active function */
 };

 /* }====================================================================== */


 /******************************************************************************
 * Copyright (C) 1994-2022 Lua.org, PUC-Rio.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 ******************************************************************************/


 #endif
	/*
	** $Id: lua.h $
	** Lua - A Scripting Language
	** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
	** See Copyright Notice at the end of this file
	*/


	#ifndef lua_h
	#define lua_h

	#include <stdarg.h>
	#include <stddef.h>


	#include "luaconf.h"


	#define LUA_VERSION_MAJOR "5"
	#define LUA_VERSION_MINOR "4"
	#define LUA_VERSION_RELEASE "5"

	#define LUA_VERSION_NUM 504
	#define LUA_VERSION_RELEASE_NUM (LUA_VERSION_NUM * 100 + 5)

	#define LUA_VERSION "Lua " LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
	#define LUA_RELEASE LUA_VERSION "." LUA_VERSION_RELEASE
	#define LUA_COPYRIGHT LUA_RELEASE " Copyright (C) 1994-2022 Lua.org, PUC-Rio"
	#define LUA_AUTHORS "R. Ierusalimschy, L. H. de Figueiredo, W. Celes"


	/* mark for precompiled code ('<esc>Lua') */
	#define LUA_SIGNATURE "\x1bLua"

	/* option for multiple returns in 'lua_pcall' and 'lua_call' */
	#define LUA_MULTRET (-1)


	/*
	** Pseudo-indices
	** (-LUAI_MAXSTACK is the minimum valid index; we keep some free empty
	** space after that to help overflow detection)
	*/
	#define LUA_REGISTRYINDEX (-LUAI_MAXSTACK - 1000)
	#define lua_upvalueindex(i) (LUA_REGISTRYINDEX - (i))


	/* thread status */
	#define LUA_OK 0
	#define LUA_YIELD 1
	#define LUA_ERRRUN 2
	#define LUA_ERRSYNTAX 3
	#define LUA_ERRMEM 4
	#define LUA_ERRERR 5


	typedef struct lua_State lua_State;


	/*
	** basic types
	*/
	#define LUA_TNONE (-1)

	#define LUA_TNIL 0
	#define LUA_TBOOLEAN 1
	#define LUA_TLIGHTUSERDATA 2
	#define LUA_TNUMBER 3
	#define LUA_TSTRING 4
	#define LUA_TTABLE 5
	#define LUA_TFUNCTION 6
	#define LUA_TUSERDATA 7
	#define LUA_TTHREAD 8

	#define LUA_NUMTYPES 9



	/* minimum Lua stack available to a C function */
	#define LUA_MINSTACK 20


	/* predefined values in the registry */
	#define LUA_RIDX_MAINTHREAD 1
	#define LUA_RIDX_GLOBALS 2
	#define LUA_RIDX_LAST LUA_RIDX_GLOBALS


	/* type of numbers in Lua */
	typedef LUA_NUMBER lua_Number;


	/* type for integer functions */
	typedef LUA_INTEGER lua_Integer;

	/* unsigned integer type */
	typedef LUA_UNSIGNED lua_Unsigned;

	/* type for continuation-function contexts */
	typedef LUA_KCONTEXT lua_KContext;


	/*
	** Type for C functions registered with Lua
	*/
	typedef int (lua_CFunction) (lua_State L);

	/*
	** Type for continuation functions
	*/
	typedef int (lua_KFunction) (lua_State L, int status, lua_KContext ctx);


	/*
	** Type for functions that read/write blocks when loading/dumping Lua chunks
	*/
	typedef const char * (lua_Reader) (lua_State L, void ud, size_t sz);

	typedef int (lua_Writer) (lua_State L, const void p, size_t sz, void ud);


	/*
	** Type for memory-allocation functions
	*/
	typedef void * (lua_Alloc) (void ud, void *ptr, size_t osize, size_t nsize);


	/*
	** Type for warning functions
	*/
	typedef void (lua_WarnFunction) (void ud, const char *msg, int tocont);




	/*
	** generic extra include file
	*/
	#if defined(LUA_USER_H)
	#include LUA_USER_H
	#endif


	/*
	** RCS ident string
	*/
	extern const char lua_ident[];


	/*
	** state manipulation
	*/
	LUA_API lua_State (lua_newstate) (lua_Alloc f, void ud);
	LUA_API void (lua_close) (lua_State *L);
	LUA_API lua_State (lua_newthread) (lua_State L);
	LUA_API int (lua_resetthread) (lua_State *L);

	LUA_API lua_CFunction (lua_atpanic) (lua_State *L, lua_CFunction panicf);


	LUA_API lua_Number (lua_version) (lua_State *L);


	/*
	** basic stack manipulation
	*/
	LUA_API int (lua_absindex) (lua_State *L, int idx);
	LUA_API int (lua_gettop) (lua_State *L);
	LUA_API void (lua_settop) (lua_State *L, int idx);
	LUA_API void (lua_pushvalue) (lua_State *L, int idx);
	LUA_API void (lua_rotate) (lua_State *L, int idx, int n);
	LUA_API void (lua_copy) (lua_State *L, int fromidx, int toidx);
	LUA_API int (lua_checkstack) (lua_State *L, int n);

	LUA_API void (lua_xmove) (lua_State from, lua_State to, int n);


	/*
	** access functions (stack -> C)
	*/

	LUA_API int (lua_isnumber) (lua_State *L, int idx);
	LUA_API int (lua_isstring) (lua_State *L, int idx);
	LUA_API int (lua_iscfunction) (lua_State *L, int idx);
	LUA_API int (lua_isinteger) (lua_State *L, int idx);
	LUA_API int (lua_isuserdata) (lua_State *L, int idx);
	LUA_API int (lua_type) (lua_State *L, int idx);
	LUA_API const char (lua_typename) (lua_State L, int tp);

	LUA_API lua_Number (lua_tonumberx) (lua_State L, int idx, int isnum);
	LUA_API lua_Integer (lua_tointegerx) (lua_State L, int idx, int isnum);
	LUA_API int (lua_toboolean) (lua_State *L, int idx);
	LUA_API const char (lua_tolstring) (lua_State L, int idx, size_t *len);
	LUA_API lua_Unsigned (lua_rawlen) (lua_State *L, int idx);
	LUA_API lua_CFunction (lua_tocfunction) (lua_State *L, int idx);
	LUA_API void (lua_touserdata) (lua_State L, int idx);
	LUA_API lua_State (lua_tothread) (lua_State L, int idx);
	LUA_API const void (lua_topointer) (lua_State L, int idx);


	/*
	** Comparison and arithmetic functions
	*/

	#define LUA_OPADD 0 /* ORDER TM, ORDER OP */
	#define LUA_OPSUB 1
	#define LUA_OPMUL 2
	#define LUA_OPMOD 3
	#define LUA_OPPOW 4
	#define LUA_OPDIV 5
	#define LUA_OPIDIV 6
	#define LUA_OPBAND 7
	#define LUA_OPBOR 8
	#define LUA_OPBXOR 9
	#define LUA_OPSHL 10
	#define LUA_OPSHR 11
	#define LUA_OPUNM 12
	#define LUA_OPBNOT 13

	LUA_API void (lua_arith) (lua_State *L, int op);

	#define LUA_OPEQ 0
	#define LUA_OPLT 1
	#define LUA_OPLE 2

	LUA_API int (lua_rawequal) (lua_State *L, int idx1, int idx2);
	LUA_API int (lua_compare) (lua_State *L, int idx1, int idx2, int op);


	/*
	** push functions (C -> stack)
	*/
	LUA_API void (lua_pushnil) (lua_State *L);
	LUA_API void (lua_pushnumber) (lua_State *L, lua_Number n);
	LUA_API void (lua_pushinteger) (lua_State *L, lua_Integer n);
	LUA_API const char (lua_pushlstring) (lua_State L, const char *s, size_t len);
	LUA_API const char (lua_pushstring) (lua_State L, const char *s);
	LUA_API const char (lua_pushvfstring) (lua_State L, const char *fmt,
	va_list argp);
	LUA_API const char (lua_pushfstring) (lua_State L, const char *fmt, ...);
	LUA_API void (lua_pushcclosure) (lua_State *L, lua_CFunction fn, int n);
	LUA_API void (lua_pushboolean) (lua_State *L, int b);
	LUA_API void (lua_pushlightuserdata) (lua_State L, void p);
	LUA_API int (lua_pushthread) (lua_State *L);


	/*
	** get functions (Lua -> stack)
	*/
	LUA_API int (lua_getglobal) (lua_State L, const char name);
	LUA_API int (lua_gettable) (lua_State *L, int idx);
	LUA_API int (lua_getfield) (lua_State L, int idx, const char k);
	LUA_API int (lua_geti) (lua_State *L, int idx, lua_Integer n);
	LUA_API int (lua_rawget) (lua_State *L, int idx);
	LUA_API int (lua_rawgeti) (lua_State *L, int idx, lua_Integer n);
	LUA_API int (lua_rawgetp) (lua_State L, int idx, const void p);

	LUA_API void (lua_createtable) (lua_State *L, int narr, int nrec);
	LUA_API void (lua_newuserdatauv) (lua_State L, size_t sz, int nuvalue);
	LUA_API int (lua_getmetatable) (lua_State *L, int objindex);
	LUA_API int (lua_getiuservalue) (lua_State *L, int idx, int n);


	/*
	** set functions (stack -> Lua)
	*/
	LUA_API void (lua_setglobal) (lua_State L, const char name);
	LUA_API void (lua_settable) (lua_State *L, int idx);
	LUA_API void (lua_setfield) (lua_State L, int idx, const char k);
	LUA_API void (lua_seti) (lua_State *L, int idx, lua_Integer n);
	LUA_API void (lua_rawset) (lua_State *L, int idx);
	LUA_API void (lua_rawseti) (lua_State *L, int idx, lua_Integer n);
	LUA_API void (lua_rawsetp) (lua_State L, int idx, const void p);
	LUA_API int (lua_setmetatable) (lua_State *L, int objindex);
	LUA_API int (lua_setiuservalue) (lua_State *L, int idx, int n);


	/*
	** 'load' and 'call' functions (load and run Lua code)
	*/
	LUA_API void (lua_callk) (lua_State *L, int nargs, int nresults,
	lua_KContext ctx, lua_KFunction k);
	#define lua_call(L,n,r) lua_callk(L, (n), (r), 0, NULL)

	LUA_API int (lua_pcallk) (lua_State *L, int nargs, int nresults, int errfunc,
	lua_KContext ctx, lua_KFunction k);
	#define lua_pcall(L,n,r,f) lua_pcallk(L, (n), (r), (f), 0, NULL)

	LUA_API int (lua_load) (lua_State L, lua_Reader reader, void dt,
	const char chunkname, const char mode);

	LUA_API int (lua_dump) (lua_State L, lua_Writer writer, void data, int strip);


	/*
	** coroutine functions
	*/
	LUA_API int (lua_yieldk) (lua_State *L, int nresults, lua_KContext ctx,
	lua_KFunction k);
	LUA_API int (lua_resume) (lua_State L, lua_State from, int narg,
	int *nres);
	LUA_API int (lua_status) (lua_State *L);
	LUA_API int (lua_isyieldable) (lua_State *L);

	#define lua_yield(L,n) lua_yieldk(L, (n), 0, NULL)


	/*
	** Warning-related functions
	*/
	LUA_API void (lua_setwarnf) (lua_State L, lua_WarnFunction f, void ud);
	LUA_API void (lua_warning) (lua_State L, const char msg, int tocont);


	/*
	** garbage-collection function and options
	*/

	#define LUA_GCSTOP 0
	#define LUA_GCRESTART 1
	#define LUA_GCCOLLECT 2
	#define LUA_GCCOUNT 3
	#define LUA_GCCOUNTB 4
	#define LUA_GCSTEP 5
	#define LUA_GCSETPAUSE 6
	#define LUA_GCSETSTEPMUL 7
	#define LUA_GCISRUNNING 9
	#define LUA_GCGEN 10
	#define LUA_GCINC 11

	LUA_API int (lua_gc) (lua_State *L, int what, ...);


	/*
	** miscellaneous functions
	*/

	LUA_API int (lua_error) (lua_State *L);

	LUA_API int (lua_next) (lua_State *L, int idx);

	LUA_API void (lua_concat) (lua_State *L, int n);
	LUA_API void (lua_len) (lua_State *L, int idx);

	LUA_API size_t (lua_stringtonumber) (lua_State L, const char s);

	LUA_API lua_Alloc (lua_getallocf) (lua_State L, void *ud);
	LUA_API void (lua_setallocf) (lua_State L, lua_Alloc f, void ud);

	LUA_API void (lua_toclose) (lua_State *L, int idx);
	LUA_API void (lua_closeslot) (lua_State *L, int idx);


	/*
	** {==============================================================
	** some useful macros
	** ===============================================================
	*/

	#define lua_getextraspace(L) ((void )((char )(L) - LUA_EXTRASPACE))

	#define lua_tonumber(L,i) lua_tonumberx(L,(i),NULL)
	#define lua_tointeger(L,i) lua_tointegerx(L,(i),NULL)

	#define lua_pop(L,n) lua_settop(L, -(n)-1)

	#define lua_newtable(L) lua_createtable(L, 0, 0)

	#define lua_register(L,n,f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n)))

	#define lua_pushcfunction(L,f) lua_pushcclosure(L, (f), 0)

	#define lua_isfunction(L,n) (lua_type(L, (n)) == LUA_TFUNCTION)
	#define lua_istable(L,n) (lua_type(L, (n)) == LUA_TTABLE)
	#define lua_islightuserdata(L,n) (lua_type(L, (n)) == LUA_TLIGHTUSERDATA)
	#define lua_isnil(L,n) (lua_type(L, (n)) == LUA_TNIL)
	#define lua_isboolean(L,n) (lua_type(L, (n)) == LUA_TBOOLEAN)
	#define lua_isthread(L,n) (lua_type(L, (n)) == LUA_TTHREAD)
	#define lua_isnone(L,n) (lua_type(L, (n)) == LUA_TNONE)
	#define lua_isnoneornil(L, n) (lua_type(L, (n)) <= 0)

	#define lua_pushliteral(L, s) lua_pushstring(L, "" s)

	#define lua_pushglobaltable(L) \
	((void)lua_rawgeti(L, LUA_REGISTRYINDEX, LUA_RIDX_GLOBALS))

	#define lua_tostring(L,i) lua_tolstring(L, (i), NULL)


	#define lua_insert(L,idx) lua_rotate(L, (idx), 1)

	#define lua_remove(L,idx) (lua_rotate(L, (idx), -1), lua_pop(L, 1))

	#define lua_replace(L,idx) (lua_copy(L, -1, (idx)), lua_pop(L, 1))

	/* }============================================================== */


	/*
	** {==============================================================
	** compatibility macros
	** ===============================================================
	*/
	#if defined(LUA_COMPAT_APIINTCASTS)

	#define lua_pushunsigned(L,n) lua_pushinteger(L, (lua_Integer)(n))
	#define lua_tounsignedx(L,i,is) ((lua_Unsigned)lua_tointegerx(L,i,is))
	#define lua_tounsigned(L,i) lua_tounsignedx(L,(i),NULL)

	#endif

	#define lua_newuserdata(L,s) lua_newuserdatauv(L,s,1)
	#define lua_getuservalue(L,idx) lua_getiuservalue(L,idx,1)
	#define lua_setuservalue(L,idx) lua_setiuservalue(L,idx,1)

	#define LUA_NUMTAGS LUA_NUMTYPES

	/* }============================================================== */

	/*
	** {======================================================================
	** Debug API
	** =======================================================================
	*/


	/*
	** Event codes
	*/
	#define LUA_HOOKCALL 0
	#define LUA_HOOKRET 1
	#define LUA_HOOKLINE 2
	#define LUA_HOOKCOUNT 3
	#define LUA_HOOKTAILCALL 4


	/*
	** Event masks
	*/
	#define LUA_MASKCALL (1 << LUA_HOOKCALL)
	#define LUA_MASKRET (1 << LUA_HOOKRET)
	#define LUA_MASKLINE (1 << LUA_HOOKLINE)
	#define LUA_MASKCOUNT (1 << LUA_HOOKCOUNT)

	typedef struct lua_Debug lua_Debug; /* activation record */


	/* Functions to be called by the debugger in specific events */
	typedef void (lua_Hook) (lua_State L, lua_Debug *ar);


	LUA_API int (lua_getstack) (lua_State L, int level, lua_Debug ar);
	LUA_API int (lua_getinfo) (lua_State L, const char what, lua_Debug *ar);
	LUA_API const char (lua_getlocal) (lua_State L, const lua_Debug *ar, int n);
	LUA_API const char (lua_setlocal) (lua_State L, const lua_Debug *ar, int n);
	LUA_API const char (lua_getupvalue) (lua_State L, int funcindex, int n);
	LUA_API const char (lua_setupvalue) (lua_State L, int funcindex, int n);

	LUA_API void (lua_upvalueid) (lua_State L, int fidx, int n);
	LUA_API void (lua_upvaluejoin) (lua_State *L, int fidx1, int n1,
	int fidx2, int n2);

	LUA_API void (lua_sethook) (lua_State *L, lua_Hook func, int mask, int count);
	LUA_API lua_Hook (lua_gethook) (lua_State *L);
	LUA_API int (lua_gethookmask) (lua_State *L);
	LUA_API int (lua_gethookcount) (lua_State *L);

	LUA_API int (lua_setcstacklimit) (lua_State *L, unsigned int limit);

	struct lua_Debug {
	int event;
	const char name; / (n) */
	const char namewhat; / (n) 'global', 'local', 'field', 'method' */
	const char what; / (S) 'Lua', 'C', 'main', 'tail' */
	const char source; / (S) */
	size_t srclen; /* (S) */
	int currentline; /* (l) */
	int linedefined; /* (S) */
	int lastlinedefined; /* (S) */
	unsigned char nups; /* (u) number of upvalues */
	unsigned char nparams;/* (u) number of parameters */
	char isvararg; /* (u) */
	char istailcall; /* (t) */
	unsigned short ftransfer; /* (r) index of first value transferred */
	unsigned short ntransfer; /* (r) number of transferred values */
	char short_src[LUA_IDSIZE]; /* (S) */
	/* private part */
	struct CallInfo i_ci; / active function */
	};

	/* }====================================================================== */


	/******************************************************************************
	* Copyright (C) 1994-2022 Lua.org, PUC-Rio.
	*
	* Permission is hereby granted, free of charge, to any person obtaining
	* a copy of this software and associated documentation files (the
	* "Software"), to deal in the Software without restriction, including
	* without limitation the rights to use, copy, modify, merge, publish,
	* distribute, sublicense, and/or sell copies of the Software, and to
	* permit persons to whom the Software is furnished to do so, subject to
	* the following conditions:
	*
	* The above copyright notice and this permission notice shall be
	* included in all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
	* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
	* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
	* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	******************************************************************************/


	#endif